The rules for qualifying marks have varied from year to year. The qualifying marks (out of 100) are different for different subjects as well as categories.

Category

Qualifying mark (out of 100)

General (GN)

25 or μ + σ, whichever is higher.

Other backward classes (OBC)

90% of general category's qualifying mark.

Scheduled castes (SC) and scheduled tribes (ST)

2/3 (i.e., 66.67%) of general category's qualifying mark.

Here μ is the average (i.e., arithmetic mean) of marks of all candidates in the subject (with negative marks converted to zero) and σ is the standard deviation of all marks in that subject.

Usually, the general category's qualifying mark is in the 25 to 50 range.

From 2014 onward, examination for CE, CS, EC, EE and ME subjects is being held in multiple sessions. Hence, for these subjects, a suitable normalization is applied to take into account any variation in the difficulty levels of the question sets across different sessions.

Here, qualifying marks for CE, CS, EC, EE and ME are given for general, OBC and SC/ST candiadates.

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